President Trump on Thursday blasted ​former director of National Intelligence ​James Clapper, who questioned the commander-in-chief’s fitness for office and worried about ​his access to the nuclear codes.

“James Clapper, who famously got caught lying to Congress, is now an authority on Donald Trump. Will he show you his beautiful letter to me?​,” Trump wrote on Twitter.​

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Former director of national intelligence James Clapper said Wednesday that...

​Clapper, in an interview with CNN’s Don Lemon, said he was concerned with Trump’s ability to handle the responsibilities of the White House. ​

“I really question his ability to be – his fitness to be – in this office, and I also am beginningto wonder about his motivation for it,” Clapper said Wednesday on “CNN Tonight.”

He also said the president’s access to the nuclear codes is troubling.

“In a fit of pique he decides to do something about Kim Jong Un, there’s actually very little to stop him,” Clapper said. “The whole system is built to ensure rapid response if necessary. So there’s very little in the way of controls over exercising a nuclear option, which is pretty damn scary.”

Trump’s accusation that Clapper lied appears to be in reference to his testimony in 2013 before the Senate Intelligence Committee when he was questioned about whether the intelligence community was collecting data on US citizens.

Clapper responded “No, sir,” and “Not wittingly.”

When former National Security Agency contractor Edward Snowden later revealed that the government was amassing information on
Americans, many Republican lawmakers accused Clapper of lying to Congress.

It also led a group of congressmen, headed by GOP Rep. Darrell Issa of California to write a letter to President Obama asking for him to fire Clapper.

Earlier on Thursday, Trump continued his assault on the news media, again calling them “Fake News” for how they reported on his wildly different speeches this week.